TSI offers a variety of tracer particle generators for Particle Image Velocimetry (PIV) and Laser Doppler Velocimetry (LDV) applications. Each generator provides tracer particles of the appropriate size for flow velocity measurements in air and liquids. Different generator models are able to use different materials (liquids and solids) and operate under different conditions to produce the appropriate tracer particles.

The 9302 and 9306 Nebulizers are aerosol generators designed to generate liquid and solid particles. The generators can be used to disperse a variety of substances, including water droplets, salt or sugar particles, polystyrene latex particles, and oil droplets. The concentration of particles produced by the 9306 atomizer can be adjusted by introducing external air to mix with the particles.

The 9307 (single-jet) and 9307-6 (six-jet) Laskin nozzle droplet generators are designed to provide a large number of tracer particles for particle image velocimetry (PIV) or Doppler laser velocimetry (LDV). They are also ideal for providing tracer particles in high speed wind tunnel experiments. These generators are usually fed with olive oil, but other liquids such as DEHS and saline solutions (to provide solid salt particles) can also be fed.

The Model 9308 Smoke Generator is a compact, flexible, high output, and easily transportable instrument. The volume concentration control feature enables the user to release the appropriate smoke, from a small puff of gas to a large cloud, to suit any measurement. The Model 9308 Smoke Generator is remotely or locally controlled via a control panel that connects to the machine via a standard 7-pin XLR connector.

Features and advantages

The Model 9309 Solid State Tracer Particle Generator is ideally suited for providing tracer particles for flow field measurements in high pressure and high temperature environments such as combustion. The generator uses SiO 2 , TiO 2 and Al 2 O 3 dry powders. The generator is capable of operating at high pressures, but the powder must remain dry.